SOLUTION: What should be the grade of the fifth quiz of Ehm to raise her average from 85 to 87? Thanks - - God Bless

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Question 613973: What should be the grade of the fifth quiz of Ehm to raise her average from 85 to 87?
Thanks - - God Bless
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
What should be the grade of the fifth quiz of Ehm to raise her average from 85 to 87?
:
Assume the first 4 grades are 85
Let x = the fifth grade
:
%284%2885%29+%2B+x%29%2F5 = 87
:
%28340+%2B+x%29%2F5 = 87
Multiply both sides by 5
340 + x = 5(87)
x = 435 - 340
x = 95 is the grade required to raise her average to 87